<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表格练习</title>
</head>
<body>
     <table border="1px" cellspacing="0" cellpadding="10px">
    <tr><th rowspan="5">序号</th>
      <th colspan="2">菜价单</th>
    </tr>
    <tr>
      <th>菜名</th>
      <th>菜价</th>
    </tr>
    <tr>
      <td>白菜</td>
      <td>3￥</td>
    </tr>
    <tr>
      <td>青菜</td>
      <td>3￥</td>
    </tr>
    <tr>
      <td>芹菜</td>
      <td>3￥</td>
    </tr>
  </table>

  <br/>
   <table border="1px" cellspacing="0" cellpadding="10px">
    <caption><h3>课程计划表</h3></caption>
    <tr>
      <th rowspan="3">课表</th>
      <th colspan="5">上课</th>
      <th colspan="2">休息</th>
    </tr>
    <tr>
      <td>星期一</td>
      <td>星期二</td>
      <td>星期三</td>
      <td>星期四</td>
      <td>星期五</td>
      <td>星期六</td>
      <td>星期日</td>
    </tr>
    <tr>
      <td>计算机</td>
      <td>计算机</td>
      <td>计算机</td>
      <td>计算机</td>
      <td>计算机</td>
      <td>复习</td>
      <td>休息</td>
    </tr>
  </table>
  <br/>

</body>
</html>